Your cell phone should be away during all times today.

Learning Intentions

•   You can use a provided rubric to assess and modify their own work if necessary before presenting.

•  You can present the matchmaker profile you created on a scientist from history.           
•  You can take notes about other scientists to learn their names, experiments they performed and scientific contribution to the atomic theory while watching presentations done by their classmates.

• You can create a timeline on the board of each scientist and their contribution to the atomic theory to visualize the order of events.

Content Standards being covered:

Student understands the structure of matter at the atomic level and the history that lead to our current understanding.
57.Democritus, an ancient Greek, was the first to conceptualize the atom and called this theoretical particle “atomos”, meaning indivisible
58. John Dalton proposed the “Atomic Theory”- 4 key ideas that impact our understanding of Chemistry to this day
59. Dmitri Mendeleev proposed a pattern for organizing elements in 1869 that has developed into the modern, most commonly used, Periodic Table
60. J.J. Thomson used cathode rays to discover the electron
63. R.A. Millikan used the oil drop experiment to discover the mass of an electron
64. Using the gold foil experiment, Ernest Rutherford discovered a very small and very dense positively charged nucleus at the center of an atom.
65. Neils Bohr proposed an atomic structure that described electrons orbiting the nucleus like planets around the Sun
66. James Chadwick discovered the neutron using alpha particles
67. Ernest Shrodinger used his equation to explain the wave nature of the electrons that led to the quantum mechanic model of the atom.

Habits of Mind/Life skills being covered:

Thinking Flexibly

Remaining Open to Continuous Learning

Journal Entry:

When your classmates are presenting what should you be doing?